''Kefersteinia'' may refer to:
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''Kefersteinia'' (polychaete), a polychaete genus in the family
Hesionidae
Hesionidae are a family of phyllodocid "bristle worms" (class Polychaeta). They are (like almost all polychaetes) marine organisms. Most are found on the continental shelf; '' Hesiocaeca methanicola'' is found on methane ice, where it feeds ...
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''Kefersteinia'' (plant), a plant genus in the family Orchidaceae
{{Genus disambiguation